Optolong LRGB Imaging Filter Set - 31mm Round Unmounted

Contiguous US Customers:All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska: Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

More Views

Product Details

Detailed description coming soon. Item is in stock and ready to ship.

Additional Information

About Optolong

While Optolong is a relative newcomer to the astronomy industry, they are no strangers to optics and filters. Optolong is a division of Yulong Optics Company, a high tech company specializing in optical filter design and production. Their products include bandpass filters, flourescence filters, edge filters, longpass and shortpass filters, beam splitters, anti-reflection coatings, optical mirrors and, of course, astronomical filters.

Established in 1999 and based in Kunming City, China, Optolong/Yulong provides nearly 2000 types of optical filter coatings annually to customers worldwide in a wide variety of industries and applications. We invite you to learn more about Optolong/Yulong, their products, facilities, and processes by viewing the short video below:

Review's title & body can't be emptyPlease enter a star rating for this reviewName field cannot be emptyInvalid emailYour review has already been submitted.Max length was exceededPlease fill out all of the mandatory (*) fieldsOne or more of your answers does not meet the required criteria

Review's title & body can't be emptyPlease enter a star rating for this reviewName field cannot be emptyInvalid emailYour review has already been submitted.Max length was exceededPlease fill out all of the mandatory (*) fieldsOne or more of your answers does not meet the required criteria

Use your name:

Email:

Thank you for posting a question!

Please click on the link in the confirmation email we just sent you to submit your question.Your question will appear on the site once someone answers it.